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![]() ![]() Sandwich panels properties:
-light weight (the mass of one square meter of the panel with rigid PVC 1 mm thick makes about 3,9 kg at a thickness of 24 mm); -good heat insulation (heat transmission resistance is less than 0,9 sq.m * C° /W - good acoustic insulation (the sound insulation index at a thickness 24мм makes not less than 24 dB); -high moisture resistance; -good impact resistance capability; -resistance to ultraviolet radiation; -possibility of processing by ordinary tools on a tree and metal. Properties of a filler: -average density ~ 35 kg/m3 -low coefficient of heat conductivity (0,029 W/m * °C) almost not changing at increase in humidity and cyclic loadings; -high durability on compression - 0,25 MPas -small water absorption - no more than 1,5% in 30 days; Recommendations for the sandwich panels’ use: - Operation range from a minus of 50 °C to plus of 60 °C. - When we fasten the sandwich of panels and it is known they work in the big range of temperatures we have to consider a coefficient of linear expansion of sandwich panels which is accepted equal 7×10-5 °C. - It is easy to cut sandwich panels by disk saws or by a fret saw. ![]()
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